Modifier and Type	Class and Description
private static class	DfsReftable.CacheSource

Access	Constructor and Description
public	DfsReftable(DfsPackDescription description of the reftable within the DFS. desc) Construct a reader for an existing reftable.
public	DfsReftable(DfsBlockCache cache that will store the reftable data. cache, DfsPackDescription description of the reftable within the DFS. desc) Construct a reader for an existing reftable.

Modifier and Type	Method and Description
public DfsPackDescription	Returns: description that was originally used to configure this file. getPackDescription() Get description that was originally used to configure this file.
public ReftableReader	Returns: cursor to read the table; caller must close. open(DfsReader reader to access the DFS storage. ctx) Open reader on the reftable.

DfsReftable	back to summary
public DfsReftable(DfsPackDescription desc) Construct a reader for an existing reftable. Parameters desc:DfsPackDescription description of the reftable within the DFS.

DfsReftable	back to summary
public DfsReftable(DfsBlockCache cache, DfsPackDescription desc) Construct a reader for an existing reftable. Parameters cache:DfsBlockCache cache that will store the reftable data. desc:DfsPackDescription description of the reftable within the DFS.

getPackDescription	back to summary
public DfsPackDescription getPackDescription() Get description that was originally used to configure this file. Returns:DfsPackDescription description that was originally used to configure this file.

open	back to summary
public ReftableReader open(DfsReader ctx) throws IOException Open reader on the reftable. The returned reader is not thread safe. Parameters ctx:DfsReader reader to access the DFS storage. Returns:ReftableReader cursor to read the table; caller must close. Exceptions IOException: table cannot be opened.

org.eclipse.jgit.internal.storage.dfs back to summary

private final Class DfsReftable.CacheSource

Class Inheritance

java.lang.Object
org.eclipse.jgit.internal.storage.io.BlockSource
org.eclipse.jgit.internal.storage.dfs.DfsReftable.CacheSource

Field Summary

Modifier and Type	Field and Description
private final DfsBlockCache	cache
private ReadableChannel	ch
private final DfsReader	ctx
private final DfsReftable	file
private int	readAhead

Constructor Summary

Access	Constructor and Description
pack-priv	CacheSource(DfsReftable file, DfsBlockCache cache, DfsReader ctx)

Method Summary

Modifier and Type	Method and Description
public void	adviseSequentialRead(long starting position. start, long ending position. end) Overrides org.eclipse.jgit.internal.storage.io.BlockSource.adviseSequentialRead. Advise the `BlockSource` a sequential scan is starting.
public void	close() Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.close. Implements java.lang.AutoCloseable.close. Closes this resource, relinquishing any underlying resources.
private boolean	notInCache(long pos)
private ReadableChannel	open()
public ByteBuffer	read(long position of the block in the file, specified in bytes from the beginning of the file. pos, int size to read. cnt) Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.read. Read a block from the file.
public long	size() Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.size. Determine the size of the file.

Inherited from org.eclipse.jgit.internal.storage.io.BlockSource:: from from from

Field Detail

cache	back to summary
private final DfsBlockCache cache

ch	back to summary
private ReadableChannel ch

ctx	back to summary
private final DfsReader ctx

file	back to summary
private final DfsReftable file

readAhead	back to summary
private int readAhead

Constructor Detail

CacheSource	back to summary
pack-priv CacheSource(DfsReftable file, DfsBlockCache cache, DfsReader ctx)

Method Detail

adviseSequentialRead back to summary

adviseSequentialRead	back to summary
public void adviseSequentialRead(long start, long end) Overrides org.eclipse.jgit.internal.storage.io.BlockSource.adviseSequentialRead. Doc from org.eclipse.jgit.internal.storage.io.BlockSource.adviseSequentialRead. Advise the `BlockSource` a sequential scan is starting. Parameters start:long starting position. end:long ending position. Annotations @Override

public void adviseSequentialRead(long start, long end)

Overrides org.eclipse.jgit.internal.storage.io.BlockSource.adviseSequentialRead.

Doc from org.eclipse.jgit.internal.storage.io.BlockSource.adviseSequentialRead.

Advise the BlockSource a sequential scan is starting.

Parameters

start:long: starting position.
end:long: ending position.

Annotations

@Override

close back to summary

close	back to summary
public void close() Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.close. Implements java.lang.AutoCloseable.close. Doc from java.lang.AutoCloseable.close. Closes this resource, relinquishing any underlying resources. This method is invoked automatically on objects managed by the `try`-with-resources statement. Annotations @Override

public void close()

Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.close.

Implements java.lang.AutoCloseable.close.

Doc from java.lang.AutoCloseable.close.

Closes this resource, relinquishing any underlying resources. This method is invoked automatically on objects managed by the try-with-resources statement.

Annotations

@Override

notInCache	back to summary
private boolean notInCache(long pos)

open	back to summary
private ReadableChannel open() throws IOException

read back to summary

read	back to summary
public ByteBuffer read(long pos, int cnt) throws IOException Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.read. Doc from org.eclipse.jgit.internal.storage.io.BlockSource.read. Read a block from the file. To reduce copying, the returned ByteBuffer should have an accessible array and `arrayOffset() == 0`. The caller will discard the ByteBuffer and directly use the backing array. Parameters pos:long position of the block in the file, specified in bytes from the beginning of the file. cnt:int size to read. Returns:ByteBuffer buffer containing the block content. Annotations @Override Exceptions IOException: if block cannot be read.

public ByteBuffer read(long pos, int cnt) throws IOException

Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.read.

Doc from org.eclipse.jgit.internal.storage.io.BlockSource.read.

Read a block from the file.

To reduce copying, the returned ByteBuffer should have an accessible array and arrayOffset() == 0. The caller will discard the ByteBuffer and directly use the backing array.

Parameters

pos:long: position of the block in the file, specified in bytes from the beginning of the file.
cnt:int: size to read.

Returns:ByteBuffer

buffer containing the block content.

Annotations

@Override

Exceptions

IOException:: if block cannot be read.

size	back to summary
public long size() throws IOException Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.size. Doc from org.eclipse.jgit.internal.storage.io.BlockSource.size. Determine the size of the file. Returns:long total number of bytes in the file. Annotations @Override Exceptions IOException: if size cannot be obtained.

size

back to summary

public long size() throws IOException

Implements abstract org.eclipse.jgit.internal.storage.io.BlockSource.size.

Doc from org.eclipse.jgit.internal.storage.io.BlockSource.size.

Determine the size of the file.

Returns:long

total number of bytes in the file.

Annotations

@Override

Exceptions

IOException:: if size cannot be obtained.

public Class DfsReftable

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Constructor Detail

Method Detail

private final Class DfsReftable.CacheSource

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail